LinkedIn interview notes, page 18 of 32

“This is the kind of question where you think you know where to start and then realize five minutes in that you've already painted yourself into a corner.” The rest of the author's notes on Software Engineer interview at LinkedIn, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This is reservoir sampling and I'd seen it before, which saved me.” The rest of the author's notes on Data Scientist interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This one is wide.” The rest of the author's notes on Software Engineer interview at LinkedIn, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I started with candidate generation and ranking, which felt natural, but the interviewer kept pulling me back to feature extraction from job postings.” The rest of the author's notes on Machine Learning Engineer interview at LinkedIn, Onsite - System Design / Architecture round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“This is basically the paint house problem but generalized to C colors.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The duplicates part is what gets you.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew the Von Neumann trick from somewhere in the back of my head but couldn't remember the name, so I just re-derived it.” The rest of the author's notes on Machine Learning Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I started by questioning whether reactions even made sense for LinkedIn's context, which I think was the right instinct but I spent too long on it.” The rest of the author's notes on Product Manager interview at LinkedIn, Onsite - Product Sense / Strategy round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“The naive solution comes to mind fast, a simple frequency map, but then they ask about O(1) and you realize a sorted structure won't cut it.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.

“I knew this problem and had the hashmap-plus-array approach ready.” The rest of the author's notes on Software Engineer interview at LinkedIn, Technical Phone Screen round, covers how they worked through the question, what the panel pushed back on, and what they would do differently.